Hitachi UTOPIA RAS-4HVRP2E Installations- Und Betriebshandbuch Seite 47

Electric wiring
10.3 COMMON WIRING
!
C A U T I O N
All the field wiring and electrical components must comply with local codes and regulations.
10.3.1 Electrical wiring between indoor unit and outdoor unit
• Connect the electrical wires between the indoor unit and the
outdoor unit, as shown below.
• Open a hole near the connection hole of power source
wiring when multiple outdoor units are connected from one
power source line.
Power source from the outdoor unit to the indoor unit (example)
Nº 0 System
L1 L2 L3 L1 L2 L3 N N
Outdoor unit
3
Indoor Unit
Terminal board
Circuit Breaker
Earth leakage Breaker
Field Wiring
Field supplied
Optional Accessory
10.3.2 Wire size

Connection wiring
Recommended minimum sizes for field provided wires:
Model Power supply
1~ 230V 50Hz
All Indoor Units
(except 8, 10, 16 and
240V 50Hz
20HP)
(depending on
the model)
RAS-(4-6)HV(R/N)(C/P)2E 1~ 230V 50Hz
RAS-(4-6)H(R/N)(C/P)2E 3N~ 400V 50Hz
?
N O T E
• Follow local codes and regulations when selecting field wires, Circuit
breakers and Earth Leakage breakers.
• Use the wires which are not lighter than the ordinary polychloroprene
sheathed flexible cord (code designation 60245 IEC 57).
16 PMML0545 rev.2 - 04/2021
Operating Line
(Shielded Pair Cable)
DC5V (Non-Pole Transmission,
H-LINK System)
Indoor Unit
Remote Control Switch
(Twisted Shielded Pair Cable)
Power
Transmitting
source
cable size
cable size
EN60335-1 EN60335-1
or
1~ 220-
0.75 mm²
0.75 mm²
6.0 mm
2
4.0 mm
2
• The recommended breaker sizes are detailed in the Wire
size section.
• In the case that a conduit tube for field-wiring is not used, fix
rubber bushes with adhesive on the panel.
Independent power source of outdoor unit and indoor unit (example)
Nº 0 System
Outdoor unit
L1 L2 L3 N
3
3

Main switch protection
Select the main switches in according to the next table:
Model Power supply
All Indoor 1~ 230V 50Hz
Units or
(except 8, 1~ 220-240V
10, 16 and 50Hz (depending
20HP) on the model)
ELB: Earth leakage breaker; CB: Circuit breaker
Outdoor unit
RAS-4HV(R/N)(C/P)2E
RAS-5HV(R/N)(C/P)2E
RAS-6HV(R/N)(C/P)2E
RAS-4H(R/N)(C/P)2E
RAS-5H(R/N)(C/P)2E
RAS-6H(R/N)(C/P)2E
Operating Line
(Twisted Shielded
Pair Cable)
DC5V (Non-Pole
Transmission, H-LINK
System)
Indoor Unit Indoor Unit
Remote Control Switch
(Twisted Shielded Pair Cable)
Max CB ELB
current (A) (A) (nº poles/A/mA)
5.0 6 2/40/30
ELB
MC (A) CB (A)
(nº poles/A/mA)
22.5 25
22.5 25 2/40/30
22.5 25
15.0 20
15.0 20 4/40/30
15.0 20